Byzantine Extender Chain Necklace Extension Lobster Lock Real 14K Yellow Gold  Metal Condition Finish Avg. Weight        Width Length Clasp Retail Price Real 14K Yellow Gold (Properly Stamped 14K or 585) Brand New Polished 2.90grams for a 3 inch, depending on the size you select 7.0mm ~ 1/4" Selectable from the drop-down menu above, from 1" to 10" Lobster Claw Clasp $99 to $449 We have variety of different extenders including rolo, cable, rope, wheat, byzantine, etc. link extenders!  You can check our store for more extender listings! NOTE: The picture is showing a 3" extender.  A 1" extender has almost no byzantine links because it's too short.